1. How many MOLECULES of tetraphosphorus decaoxide are present in 4.49 grams of this compound molecules. 2. How many GRAMS of tetraphosphorus decaoxide are present in 2.75×1022 molecules of this compound ? grams.

C. The lead(II) oxide was weighed before and after the additions. d. 19 18 17 16 9 before لسلا ii. What method is used to separate the mixture in stage 3? 15 iii. What term is used to describe the unreacted lead(II) oxide? 14 13 12 9 Use the balance diagrams to work out the mass of lead(II) oxide added to the dilute nitric acid. after i. How would the student know when all of the dilute nitric acid had reacted in stage 2? e. Describe the effect of heating the solution of lead(II) nitrate until it boils and then heating for a further ten minutes.

Read the buret

Potentially Useful Information Spectrochemical Series: | < Br < SCN¯ < Cl° < NO3¯ < F° < OH° < C2O4²¯ ~ H2O < NCS° < NH3 < en < PPH3 く A student has three test tubes containing a metal (M) nitrate solution M(NO3)2 (aq) (where "M" represents a generic transition metal). The student adds aqueous ammonia (NH3) to one test tube, aqueous hydrochloric acid (HCI) to the second tube, and nothing more to the third tube, but forgets to label the tubes. After this, one test tube contains a red solution, one an orange solution, and one a yellow solution. Note: This metal, M, would follow the same rules that we used for Cu(II), Ni(II), and Co(II). The Jahn-Teller Effect does not apply. Complete each statement or answer each question below about the solutions in the three test tubes. The aqua complex causes less splitting of the d orbitals of the metal than the... ammonia complex. O chloro complex.